Adding proxy owner call back for self grouping.

lib/grouped_scope/self_grouping.rb

@@ -37,7 +37,7 @@ def group_proxy
     end
 
     def all_grouped?
-      false
+      proxy_owner.all_grouped? rescue false
     end
 
     def no_group?

test/grouped_scope/self_grouping_test.rb

@@ -105,7 +105,16 @@ def setup
       end
 
       should 'include all group members' do
-        assert_same_elements @e1.group, [@e1,@e2]
+        assert_same_elements [@e1,@e2], @e1.group
+      end
+
+      should 'member to find grouped associations of other member' do
+        assert_same_elements @e1.reports, @e2.group.reports
+      end
+
+      should 'allow proxy owner to define all grouped which ignores group_id schema' do
+        def @e1.all_grouped? ; true ; end
+        assert_same_elements [@e1,@e2,@e3,@e4], @e1.group
       end
 
     end